A/F/R gauge for tuning

Lonewolf3165 said
A/F gauge is not the be all end all of engine tuning but can give you a window into what is going on during a run or cruising etc.

I agree with that.
All these methods of 'reading' have a learning curve and none are perfect.
It is why I asked the OP to post his goals for the AFR gage.

Gages and loggers are not neccessary for most tuning.
Tune for Best Performance.

Mattax said
Finally, whatever you chose to do, Tune for Performance.
Wideband UEGO Air/Fuel Sensor